ERROR 4 [NRF_ERROR_NO_MEM] for simple app scheduler test program

Question

Hello, I started with the template app and tried to do two things on a nRF52832 using Segger Studio: 1) advertise custom service 2) use Application Timer and App Scheduler to print out stuff via RTT The advertising part works fine. But when I try to push a simple function onto the app scheduler, I run into a " ERROR 4 [NRF_ERROR_NO_MEM] " error. I can change the application timer timing (from say 2 seconds to 10 seconds), and the error happen just about when the timer goes off. If I comment out the app_sched_event_put() , then no errors. I've read that the " NRF_ERROR_NO_MEM " may be cause by the RAM_START location in the .emProject file. But previously when that was the issue, I had a message in the debug window telling me exactly where to change the start. I don't this time. Screen shot of runtime error: Error Text: app: MYTEST example started. app: Fast advertising. app: ERROR 4 [NRF_ERROR_NO_MEM] at C:SDK15.3.0 RF5_SDK_15.3.0_59ac345 RF5_SDK_15.3.0_59ac345\examples\ble_peripheral\zz_app03b_app_template_update_chars\main.c:202 PC at: 0x00031343 app: End of error report Line 202 in main.c is exactly where I app_sched_event_put (). I'm attaching my main.c, the BLE custom service in case that matters, and the sdk_config.h and .emproject. What else might be needed to troubleshoot? main.c: /** * Copyright (c) 2014 - 2019, Nordic Semiconductor ASA * * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * 2. Redistributions in binary form, except as embedded into a Nordic * Semiconductor ASA integrated circuit in a product or a software update for * such product, must reproduce the above copyright notice, this list of * conditions and the following disclaimer in the documentation and/or other * materials provided with the distribution. * * 3. Neither the name of Nordic Semiconductor ASA nor the names of its * contributors may be used to endorse or promote products derived from this * software without specific prior written permission. * * 4. This software, with or without modification, must only be used with a * Nordic Semiconductor ASA integrated circuit. * * 5. Any software provided in binary form under this license must not be reverse * engineered, decompiled, modified and/or disassembled. * * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ /** @file * * @defgroup ble_sdk_app_template_main main.c * @{ * @ingroup ble_sdk_app_template * @brief Template project main file. * * This file contains a template for creating a new application. It has the code necessary to wakeup * from button, advertise, get a connection restart advertising on disconnect and if no new * connection created go back to system-off mode. * It can easily be used as a starting point for creating a new application, the comments identified * with 'YOUR_JOB' indicates where and how you can customize. */ #include #include #include #include "nordic_common.h" #include "nrf.h" #include "app_error.h" #include "ble.h" #include "ble_hci.h" #include "ble_srv_common.h" #include "ble_advdata.h" #include "ble_advertising.h" #include "ble_conn_params.h" #include "nrf_sdh.h" #include "nrf_sdh_soc.h" #include "nrf_sdh_ble.h" #include "app_timer.h" #include "fds.h" #include "peer_manager.h" #include "peer_manager_handler.h" #include "bsp_btn_ble.h" #include "sensorsim.h" #include "ble_conn_state.h" #include "nrf_ble_gatt.h" #include "nrf_ble_qwr.h" #include "nrf_pwr_mgmt.h" #include "nrf_log.h" #include "nrf_log_ctrl.h" #include "nrf_log_default_backends.h" #include "mytest.h" //#include "console.h" #include "global.h" #include "Hardware.h" #include "util.h" #include "app_scheduler.h" //ding #define DEVICE_NAME "TestPerf" /**< Name of device. Will be included in the advertising data. */ #define MANUFACTURER_NAME "NordicSemiconductor" /**< Manufacturer. Will be passed to Device Information Service. */ #define APP_ADV_INTERVAL 300 /**< The advertising interval (in units of 0.625 ms. This value corresponds to 187.5 ms). */ #define APP_ADV_DURATION 18000 /**< The advertising duration (180 seconds) in units of 10 milliseconds. */ #define APP_BLE_OBSERVER_PRIO 3 /**< Application's BLE observer priority. You shouldn't need to modify this value. */ #define APP_BLE_CONN_CFG_TAG 1 /**< A tag identifying the SoftDevice BLE configuration. */ #define MIN_CONN_INTERVAL MSEC_TO_UNITS(100, UNIT_1_25_MS) /**< Minimum acceptable connection interval (0.1 seconds). */ #define MAX_CONN_INTERVAL MSEC_TO_UNITS(200, UNIT_1_25_MS) /**< Maximum acceptable connection interval (0.2 second). */ #define SLAVE_LATENCY 0 /**< Slave latency. */ #define CONN_SUP_TIMEOUT MSEC_TO_UNITS(4000, UNIT_10_MS) /**< Connection supervisory timeout (4 seconds). */ #define FIRST_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(5000) /**< Time from initiating event (connect or start of notification) to first time sd_ble_gap_conn_param_update is called (5 seconds). */ #define NEXT_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(30000) /**< Time between each call to sd_ble_gap_conn_param_update after the first call (30 seconds). */ #define MAX_CONN_PARAMS_UPDATE_COUNT 3 /**< Number of attempts before giving up the connection parameter negotiation. */ #define SEC_PARAM_BOND 1 /**< Perform bonding. */ #define SEC_PARAM_MITM 0 /**< Man In The Middle protection not required. */ #define SEC_PARAM_LESC 0 /**< LE Secure Connections not enabled. */ #define SEC_PARAM_KEYPRESS 0 /**< Keypress notifications not enabled. */ #define SEC_PARAM_IO_CAPABILITIES BLE_GAP_IO_CAPS_NONE /**< No I/O capabilities. */ #define SEC_PARAM_OOB 0 /**< Out Of Band data not available. */ #define SEC_PARAM_MIN_KEY_SIZE 7 /**< Minimum encryption key size. */ #define SEC_PARAM_MAX_KEY_SIZE 16 /**< Maximum encryption key size. */ #define DEAD_BEEF 0xDEADBEEF /**< Value used as error code on stack dump, can be used to identify stack location on stack unwind. */ NRF_BLE_GATT_DEF(m_gatt); /**< GATT module instance. */ NRF_BLE_QWR_DEF(m_qwr); /**< Context for the Queued Write module.*/ BLE_MYTEST_DEF(m_mytest_service); /**instantiate mytest service via macro*/ BLE_ADVERTISING_DEF(m_advertising); /**< Advertising module instance. */ static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID; /**< Handle of the current connection. */ APP_TIMER_DEF(m_polling_timer); //ding: ID for repeating timer /* YOUR_JOB: Declare all services structure your application is using * BLE_XYZ_DEF(m_xyz); */ // YOUR_JOB: Use UUIDs for service(s) used in your application. static ble_uuid_t m_adv_uuids[] = /**< Universally unique service identifiers. */ { {BLE_UUID_DEVICE_INFORMATION_SERVICE, BLE_UUID_TYPE_BLE} }; static void advertising_start(bool erase_bonds); /**@brief Callback function for asserts in the SoftDevice. * * @details This function will be called in case of an assert in the SoftDevice. * * @warning This handler is an example only and does not fit a final product. You need to analyze * how your product is supposed to react in case of Assert. * @warning On assert from the SoftDevice, the system can only recover on reset. * * @param[in] line_num Line number of the failing ASSERT call. * @param[in] file_name File name of the failing ASSERT call. */ void assert_nrf_callback(uint16_t line_num, const uint8_t * p_file_name) { app_error_handler(DEAD_BEEF, line_num, p_file_name); } /**@brief Function for handling Peer Manager events. * * @param[in] p_evt Peer Manager event. */ static void pm_evt_handler(pm_evt_t const * p_evt) { pm_handler_on_pm_evt(p_evt); pm_handler_flash_clean(p_evt); switch (p_evt->evt_id) { case PM_EVT_PEERS_DELETE_SUCCEEDED: advertising_start(false); break; default: break; } } //************************************************************************************************* //called by app scheduler static void pollingTimerCallback(void* p_event_data, uint16_t event_size) { /**@brief Function for the GAP initialization. * * @details This function sets up all the necessary GAP (Generic Access Profile) parameters of the * device including the device name, appearance, and the preferred connection parameters. */ NRF_LOG_ERROR("completed every 3 seconds!"); } //************************************************************************************************* //called by apptimer, every X seconds static void pollingTimerInterrupt(void* p_context) { //APP_ERROR_CHECK(app_sched_event_put(NULL, 0, pollingTimerCallback)); } /**@brief Function for the Timer initialization. * * @details Initializes the timer module. This creates and starts application timers. */ static void timers_init(void) { // Initialize timer module. ret_code_t err_code = app_timer_init(); APP_ERROR_CHECK(err_code); // Create timers. /* YOUR_JOB: Create any timers to be used by the application. Below is an example of how to create a timer. For every new timer needed, increase the value of the macro APP_TIMER_MAX_TIMERS by one. ret_code_t err_code; err_code = app_timer_create(&m_app_timer_id, APP_TIMER_MODE_REPEATED, timer_timeout_handler); APP_ERROR_CHECK(err_code); */ APP_ERROR_CHECK(app_timer_create(&m_polling_timer, APP_TIMER_MODE_REPEATED, pollingTimerInterrupt)); //start timer, every 3 seconds APP_ERROR_CHECK(app_timer_start(m_polling_timer, APP_TIMER_TICKS(7000), NULL)); } static void gap_params_init(void) { ret_code_t err_code; ble_gap_conn_params_t gap_conn_params; ble_gap_conn_sec_mode_t sec_mode; BLE_GAP_CONN_SEC_MODE_SET_OPEN(&sec_mode); err_code = sd_ble_gap_device_name_set(&sec_mode, (const uint8_t *)DEVICE_NAME, strlen(DEVICE_NAME)); APP_ERROR_CHECK(err_code); /* YOUR_JOB: Use an appearance value matching the application's use case. err_code = sd_ble_gap_appearance_set(BLE_APPEARANCE_); APP_ERROR_CHECK(err_code); */ memset(&gap_conn_params, 0, sizeof(gap_conn_params)); gap_conn_params.min_conn_interval = MIN_CONN_INTERVAL; gap_conn_params.max_conn_interval = MAX_CONN_INTERVAL; gap_conn_params.slave_latency = SLAVE_LATENCY; gap_conn_params.conn_sup_timeout = CONN_SUP_TIMEOUT; err_code = sd_ble_gap_ppcp_set(&gap_conn_params); APP_ERROR_CHECK(err_code); } /**@brief Function for initializing the GATT module. */ static void gatt_init(void) { ret_code_t err_code = nrf_ble_gatt_init(&m_gatt, NULL); APP_ERROR_CHECK(err_code); } /**@brief Function for handling Queued Write Module errors. * * @details A pointer to this function will be passed to each service which may need to inform the * application about an error. * * @param[in] nrf_error Error code containing information about what went wrong. */ static void nrf_qwr_error_handler(uint32_t nrf_error) { APP_ERROR_HANDLER(nrf_error); } /**@brief Function for handling the YYY Service events. * YOUR_JOB implement a service handler function depending on the event the service you are using can generate * * @details This function will be called for all YY Service events which are passed to * the application. * * @param[in] p_yy_service YY Service structure. * @param[in] p_evt Event received from the YY Service. * * static void on_yys_evt(ble_yy_service_t * p_yy_service, ble_yy_service_evt_t * p_evt) { switch (p_evt->evt_type) { case BLE_YY_NAME_EVT_WRITE: APPL_LOG("[APPL]: charact written with value %s. ", p_evt->params.char_xx.value.p_str); break; default: // No implementation needed. break; } } */ //handle MYTEST events static void mytest_evt_handler(ble_mytest_service_t * p_mytest_service, ble_mytest_evt_t * p_evt) { // Action to perform when the Data I/O characteristic notifications are enabled // Add your implementation here if (p_evt->evt_type == BLE_DATA_IO_EVT_NOTIFICATION_ENABLED) { // Possibly save to a global variable to know that notifications are ENABLED NRF_LOG_INFO("Notifications ENABLED on Data I/O Characteristic"); } else if (p_evt->evt_type == BLE_DATA_IO_EVT_NOTIFICATION_DISABLED) { // Possibly save to a global variable to know that notifications are DISABLED NRF_LOG_INFO("Notifications DISABLED on Data I/O Characteristic"); } // Handle any other events necessary... } /**@brief Function for initializing services that will be used by the application. */ static void services_init(void) { ret_code_t err_code; ble_mytest_service_init_t mytest_init; nrf_ble_qwr_init_t qwr_init = {0}; // Initialize Queued Write Module. qwr_init.error_handler = nrf_qwr_error_handler; err_code = nrf_ble_qwr_init(&m_qwr, &qwr_init); APP_ERROR_CHECK(err_code); // Initialize the mytest service memset(&mytest_init, 0, sizeof(mytest_init)); mytest_init.evt_handler = mytest_evt_handler; err_code = ble_mytest_service_init(&m_mytest_service, &mytest_init); NRF_LOG_INFO("Done with services_init() "); APP_ERROR_CHECK(err_code); } /**@brief Function for handling the Connection Parameters Module. * * @details This function will be called for all events in the Connection Parameters Module which * are passed to the application. * @note All this function does is to disconnect. This could have been done by simply * setting the disconnect_on_fail config parameter, but instead we use the event * handler mechanism to demonstrate its use. * * @param[in] p_evt Event received from the Connection Parameters Module. */ static void on_conn_params_evt(ble_conn_params_evt_t * p_evt) { ret_code_t err_code; if (p_evt->evt_type == BLE_CONN_PARAMS_EVT_FAILED) { err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_CONN_INTERVAL_UNACCEPTABLE); APP_ERROR_CHECK(err_code); } } /**@brief Function for handling a Connection Parameters error. * * @param[in] nrf_error Error code containing information about what went wrong. */ static void conn_params_error_handler(uint32_t nrf_error) { APP_ERROR_HANDLER(nrf_error); } /**@brief Function for initializing the Connection Parameters module. */ static void conn_params_init(void) { ret_code_t err_code; ble_conn_params_init_t cp_init; memset(&cp_init, 0, sizeof(cp_init)); cp_init.p_conn_params = NULL; cp_init.first_conn_params_update_delay = FIRST_CONN_PARAMS_UPDATE_DELAY; cp_init.next_conn_params_update_delay = NEXT_CONN_PARAMS_UPDATE_DELAY; cp_init.max_conn_params_update_count = MAX_CONN_PARAMS_UPDATE_COUNT; cp_init.start_on_notify_cccd_handle = BLE_GATT_HANDLE_INVALID; cp_init.disconnect_on_fail = false; cp_init.evt_handler = on_conn_params_evt; cp_init.error_handler = conn_params_error_handler; err_code = ble_conn_params_init(&cp_init); APP_ERROR_CHECK(err_code); } /**@brief Function for starting timers. */ static void application_timers_start(void) { /* YOUR_JOB: Start your timers. below is an example of how to start a timer. ret_code_t err_code; err_code = app_timer_start(m_app_timer_id, TIMER_INTERVAL, NULL); APP_ERROR_CHECK(err_code); */ } /**@brief Function for putting the chip into sleep mode. * * @note This function will not return. */ static void sleep_mode_enter(void) { ret_code_t err_code; err_code = bsp_indication_set(BSP_INDICATE_IDLE); APP_ERROR_CHECK(err_code); // Prepare wakeup buttons. err_code = bsp_btn_ble_sleep_mode_prepare(); APP_ERROR_CHECK(err_code); // Go to system-off mode (this function will not return; wakeup will cause a reset). err_code = sd_power_system_off(); APP_ERROR_CHECK(err_code); } /**@brief Function for handling advertising events. * * @details This function will be called for advertising events which are passed to the application. * * @param[in] ble_adv_evt Advertising event. */ static void on_adv_evt(ble_adv_evt_t ble_adv_evt) { ret_code_t err_code; switch (ble_adv_evt) { case BLE_ADV_EVT_FAST: NRF_LOG_INFO("Fast advertising."); err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING); APP_ERROR_CHECK(err_code); break; case BLE_ADV_EVT_IDLE: sleep_mode_enter(); break; default: break; } } /**@brief Function for handling BLE events. * * @param[in] p_ble_evt Bluetooth stack event. * @param[in] p_context Unused. */ static void ble_evt_handler(ble_evt_t const * p_ble_evt, void * p_context) { ret_code_t err_code = NRF_SUCCESS; switch (p_ble_evt->header.evt_id) { case BLE_GAP_EVT_DISCONNECTED: NRF_LOG_INFO("Disconnected."); // LED indication will be changed when advertising starts. break; case BLE_GAP_EVT_CONNECTED: NRF_LOG_INFO("Connected."); err_code = bsp_indication_set(BSP_INDICATE_CONNECTED); APP_ERROR_CHECK(err_code); m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle; err_code = nrf_ble_qwr_conn_handle_assign(&m_qwr, m_conn_handle); APP_ERROR_CHECK(err_code); break; case BLE_GAP_EVT_PHY_UPDATE_REQUEST: { NRF_LOG_DEBUG("PHY update request."); ble_gap_phys_t const phys = { .rx_phys = BLE_GAP_PHY_AUTO, .tx_phys = BLE_GAP_PHY_AUTO, }; err_code = sd_ble_gap_phy_update(p_ble_evt->evt.gap_evt.conn_handle, &phys); APP_ERROR_CHECK(err_code); } break; case BLE_GATTC_EVT_TIMEOUT: // Disconnect on GATT Client timeout event. NRF_LOG_DEBUG("GATT Client Timeout."); err_code = sd_ble_gap_disconnect(p_ble_evt->evt.gattc_evt.conn_handle, BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION); APP_ERROR_CHECK(err_code); break; case BLE_GATTS_EVT_TIMEOUT: // Disconnect on GATT Server timeout event. NRF_LOG_DEBUG("GATT Server Timeout."); err_code = sd_ble_gap_disconnect(p_ble_evt->evt.gatts_evt.conn_handle, BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION); APP_ERROR_CHECK(err_code); break; default: // No implementation needed. break; } } /**@brief Function for initializing the BLE stack. * * @details Initializes the SoftDevice and the BLE event interrupt. */ static void ble_stack_init(void) { ret_code_t err_code; err_code = nrf_sdh_enable_request(); APP_ERROR_CHECK(err_code); // Configure the BLE stack using the default settings. // Fetch the start address of the application RAM. uint32_t ram_start = 0; err_code = nrf_sdh_ble_default_cfg_set(APP_BLE_CONN_CFG_TAG, &ram_start); APP_ERROR_CHECK(err_code); // Enable BLE stack. err_code = nrf_sdh_ble_enable(&ram_start); APP_ERROR_CHECK(err_code); // Register a handler for BLE events. NRF_SDH_BLE_OBSERVER(m_ble_observer, APP_BLE_OBSERVER_PRIO, ble_evt_handler, NULL); } /**@brief Function for the Peer Manager initialization. */ static void peer_manager_init(void) { ble_gap_sec_params_t sec_param; ret_code_t err_code; err_code = pm_init(); APP_ERROR_CHECK(err_code); memset(&sec_param, 0, sizeof(ble_gap_sec_params_t)); // Security parameters to be used for all security procedures. sec_param.bond = SEC_PARAM_BOND; sec_param.mitm = SEC_PARAM_MITM; sec_param.lesc = SEC_PARAM_LESC; sec_param.keypress = SEC_PARAM_KEYPRESS; sec_param.io_caps = SEC_PARAM_IO_CAPABILITIES; sec_param.oob = SEC_PARAM_OOB; sec_param.min_key_size = SEC_PARAM_MIN_KEY_SIZE; sec_param.max_key_size = SEC_PARAM_MAX_KEY_SIZE; sec_param.kdist_own.enc = 1; sec_param.kdist_own.id = 1; sec_param.kdist_peer.enc = 1; sec_param.kdist_peer.id = 1; err_code = pm_sec_params_set(&sec_param); APP_ERROR_CHECK(err_code); err_code = pm_register(pm_evt_handler); APP_ERROR_CHECK(err_code); } /**@brief Clear bond information from persistent storage. */ static void delete_bonds(void) { ret_code_t err_code; NRF_LOG_INFO("Erase bonds!"); err_code = pm_peers_delete(); APP_ERROR_CHECK(err_code); } /**@brief Function for handling events from the BSP module. * * @param[in] event Event generated when button is pressed. */ static void bsp_event_handler(bsp_event_t event) { ret_code_t err_code; switch (event) { case BSP_EVENT_SLEEP: sleep_mode_enter(); break; // BSP_EVENT_SLEEP case BSP_EVENT_DISCONNECT: err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION); if (err_code != NRF_ERROR_INVALID_STATE) { APP_ERROR_CHECK(err_code); } break; // BSP_EVENT_DISCONNECT case BSP_EVENT_WHITELIST_OFF: if (m_conn_handle == BLE_CONN_HANDLE_INVALID) { err_code = ble_advertising_restart_without_whitelist(&m_advertising); if (err_code != NRF_ERROR_INVALID_STATE) { APP_ERROR_CHECK(err_code); } } break; // BSP_EVENT_KEY_0 default: break; } } /**@brief Function for initializing the Advertising functionality. */ static void advertising_init(void) { ret_code_t err_code; ble_advertising_init_t init; memset(&init, 0, sizeof(init)); init.advdata.name_type = BLE_ADVDATA_FULL_NAME; init.advdata.include_appearance = true; init.advdata.flags = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE; init.advdata.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]); init.advdata.uuids_complete.p_uuids = m_adv_uuids; init.config.ble_adv_fast_enabled = true; init.config.ble_adv_fast_interval = APP_ADV_INTERVAL; init.config.ble_adv_fast_timeout = APP_ADV_DURATION; init.evt_handler = on_adv_evt; err_code = ble_advertising_init(&m_advertising, &init); APP_ERROR_CHECK(err_code); ble_advertising_conn_cfg_tag_set(&m_advertising, APP_BLE_CONN_CFG_TAG); } /**@brief Function for initializing buttons and leds. * * @param[out] p_erase_bonds Will be true if the clear bonding button was pressed to wake the application up. */ static void buttons_leds_init(bool * p_erase_bonds) { ret_code_t err_code; bsp_event_t startup_event; err_code = bsp_init(BSP_INIT_LEDS | BSP_INIT_BUTTONS, bsp_event_handler); APP_ERROR_CHECK(err_code); err_code = bsp_btn_ble_init(NULL, &startup_event); APP_ERROR_CHECK(err_code); *p_erase_bonds = (startup_event == BSP_EVENT_CLEAR_BONDING_DATA); } /**@brief Function for initializing the nrf log module. */ static void log_init(void) { ret_code_t err_code = NRF_LOG_INIT(NULL); APP_ERROR_CHECK(err_code); NRF_LOG_DEFAULT_BACKENDS_INIT(); } /**@brief Function for initializing power management. */ static void power_management_init(void) { ret_code_t err_code; err_code = nrf_pwr_mgmt_init(); APP_ERROR_CHECK(err_code); } /**@brief Function for handling the idle state (main loop). * * @details If there is no pending log operation, then sleep until next the next event occurs. */ static void idle_state_handle(void) { if (NRF_LOG_PROCESS() == false) { nrf_pwr_mgmt_run(); } } /**@brief Function for starting advertising. */ static void advertising_start(bool erase_bonds) { if (erase_bonds == true) { delete_bonds(); // Advertising is started by PM_EVT_PEERS_DELETED_SUCEEDED event } else { ret_code_t err_code = ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST); APP_ERROR_CHECK(err_code); } } // Private functions static void BoardInit(void); /************************************************************************************************ // Function Name: static void BoardInit(void) // Return Value: void // Parameters: void // Description: sets up the pins, interrupts, serial interfaces etc. ************************************************************************************************/ static void BoardInit(void) { APP_ERROR_CHECK(sd_power_dcdc_mode_set((uint32_t)NRF_POWER_DCDC_ENABLE)); } /**@brief Function for application main entry. */ int main(void) { bool erase_bonds; // Initialize. log_init(); timers_init(); buttons_leds_init(&erase_bonds); power_management_init(); ble_stack_init(); gap_params_init(); gatt_init(); advertising_init(); services_init(); conn_params_init(); peer_manager_init(); // Initialize the board pin configurations //BoardInit(); // Start execution. NRF_LOG_INFO("MYTEST example started."); application_timers_start(); advertising_start(erase_bonds); // Enter main loop. for (;;) { app_sched_execute(); //ding idle_state_handle(); } } /** * @} */ .emProject ...well, the site is having issues posting more than 2 sets of code. I'll try it in a reply.

Kenneth · Accepted Answer

What have you defined SCHED_QUEUE_SIZE too and where are you calling: 
 static void scheduler_init(void)
{
 APP_SCHED_INIT(SCHED_MAX_EVENT_DATA_SIZE, SCHED_QUEUE_SIZE);
}

ERROR 4 [NRF_ERROR_NO_MEM] for simple app scheduler test program

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